CVE-2017-18202

high

Description

The __oom_reap_task_mm function in mm/oom_kill.c in the Linux kernel before 4.14.4 mishandles gather operations, which allows attackers to cause a denial of service (TLB entry leak or use-after-free) or possibly have unspecified other impact by triggering a copy_to_user call within a certain time window.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=687cb0884a714ff484d038e9190edc874edcf146

http://www.securityfocus.com/bid/103161

https://access.redhat.com/errata/RHSA-2018:2772

https://github.com/torvalds/linux/commit/687cb0884a714ff484d038e9190edc874edcf146

https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.4

Details

Source: MITRE

Published: 2018-02-27

Updated: 2018-09-26

Type: CWE-416

Risk Information

CVSS v2

Base Score: 6.9

Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 3.4

Severity: MEDIUM

CVSS v3

Base Score: 7

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 1

Severity: HIGH